US Patent: 1,241,282
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| Combination-Square
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Patentees:
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| Alexander M. Remer (exact or similar names) - Philadelphia, PA |
| Frederick Hughes (exact or similar names) - Camden, NJ |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 19, 1916 |
| Granted: |
Sep. 25, 1917 |
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Ralph Brendler
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Description: |
| This square features a rotating arm attached with a complicated sliding cam attached to an indicator arrow to mark the angle. |
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